Hello scampers... New guy here tired of his pop-up (sound familiar?) I’m in the process of reading maybe thousands of posts in threads going back to 2013 and first off I want to thank everyone who ever wrote two words or more. I have learned so much already and most questions I had have been resolved.  I want to pose one question immediately however since it will influence how I market the pop-up.

I am looking to buy a Scamp 13 or 16  as soon as I can sell my pop-up (maybe sooner). I am currently using a portable gray water tank and was going to give it away with the sale of the pop-up, but then I began to wonder if it is possible to use it with the Scamp’s built in gray water tank so that I could dump the gray water without towing the rig to the dump station (and thereby also avoid the line at check out time). In other words, piping the waste pipe from the Scamp’s tank to the portable tank. Or as an alternative,  bypass the Scamp’s tank altogether at times and pipe the gray water straight to the portable tank.  I would want the option to use either the Scamp's tank or the portable (or the Scamp's tank in conjection with the portable). Maybe some sort of diverter valve?  The tank I have now has a male garden hose inlet and standard RV sewer hose connection for dumping (although I don’t see why the big hose could not be an input)  My portable tank can be seen at these links:

Barker 10893 Tote Tank - 10 Gallon Capacity

http://www.adventurerv.net/totealong-portable-holding-tank-gal-barker-p-415.html